Samsung A420 - Manual (Page 42)

26 Section 2A: Your Phone: The Basics
Making and Answering Calls
Holding Your Phone
Since the antenna has been integrated into the design of the
phone, it is important not to block the reception path
accidentally to ensure the strongest signal possible is
achieved. The orbital internal antenna is located near the
hinge of your handset.
ATTENTION
Correct
Obstructing the internal
antenna could inhibit
call performance.
Incorrect